/* ===================================
   Encryption Tool Pro - Styles
   Blue & White Color Scheme
   =================================== */

:root {
    --bg-primary: #0a1628;
    --bg-secondary: #0f2140;
    --bg-card: #142952;
    --bg-input: #0d1e38;
    
    --text-primary: #ffffff;
    --text-secondary: #94a3c4;
    --text-muted: #5a6d8a;
    
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --accent-light: #93c5fd;
    --accent-glow: rgba(59, 130, 246, 0.3);
    
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.15);
    
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --container-width: 1200px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.background-pattern {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-primary) 0%, #050d1a 100%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 22, 40, 0.9);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-mark {
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.25rem;
}

.logo span {
    font-weight: 500;
    font-size: 1.1rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.nav a:hover {
    color: var(--text-primary);
}

/* Hero */
.hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-light);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero h1 em {
    font-style: italic;
    color: var(--accent-light);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Paywall Overlay */
.paywall-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow-y: auto;
}

.paywall-overlay.hidden {
    display: none;
}

.paywall-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2.5rem 3rem;
    max-width: 520px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.paywall-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.paywall-icon svg {
    color: white;
    width: 28px;
    height: 28px;
}

.paywall-content h2 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.paywall-content > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.paywall-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-input);
    border-radius: var(--radius-lg);
}

.paywall-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.payment-options {
    margin-bottom: 1.5rem;
}

.stripe-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all var(--transition-fast);
}

.stripe-btn:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

.divider {
    display: flex;
    align-items: center;
    margin: 1rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.divider span {
    padding: 0 1rem;
}

.payment-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

.already-purchased {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.already-purchased p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.unlock-btn {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.unlock-btn:hover {
    background: var(--bg-input);
    border-color: var(--accent-primary);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1001;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-overlay.show {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-content h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.access-input {
    width: 100%;
    padding: 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.access-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.submit-code-btn {
    width: 100%;
    padding: 1rem;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.submit-code-btn:hover {
    background: var(--accent-secondary);
}

.error-message {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 1rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* Main App Section */
.app-section {
    padding: 2rem 0 4rem;
}

.app-section.locked {
    filter: blur(5px);
    pointer-events: none;
    user-select: none;
}

/* Mode Toggle */
.mode-toggle {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 0.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mode-btn:hover {
    color: var(--text-primary);
}

.mode-btn.active {
    background: var(--accent-primary);
    color: white;
}

/* App Layout */
.app-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 900px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
}

.app-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
}

.app-card h3 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

/* Input Tabs */
.input-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    border-color: var(--border-light);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* Input Sections */
.input-section {
    display: none;
}

.input-section.active {
    display: block;
}

.input-section label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.text-input {
    width: 100%;
    padding: 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    transition: border-color var(--transition-fast);
}

.text-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.text-input::placeholder {
    color: var(--text-muted);
}

.textarea {
    min-height: 150px;
    resize: vertical;
    line-height: 1.6;
}

.char-count {
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* File Drop Zone */
.file-drop-zone {
    border: 2px dashed var(--border-light);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.file-drop-zone:hover,
.file-drop-zone.drag-over {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.05);
}

.file-drop-zone svg {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.file-drop-zone p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.file-drop-zone span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.file-browse-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent-primary);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.file-browse-btn:hover {
    background: var(--accent-secondary);
}

.hidden-file-input {
    display: none;
}

/* Selected File */
.selected-file {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.selected-file svg {
    color: var(--accent-primary);
    flex-shrink: 0;
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.remove-file {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color var(--transition-fast);
}

.remove-file:hover {
    color: var(--danger);
}

/* Password Section */
.password-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.password-section label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.password-input-wrapper {
    position: relative;
    display: flex;
    gap: 0.5rem;
}

.password-input {
    flex: 1;
    padding-right: 3rem;
}

.toggle-password {
    position: absolute;
    right: 4.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: color var(--transition-fast);
}

.toggle-password:hover {
    color: var(--text-primary);
}

.generate-password-btn {
    padding: 0 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.generate-password-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* Password Strength */
.password-strength {
    margin-top: 0.75rem;
}

.strength-bar {
    height: 4px;
    background: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.strength-fill {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    transition: all var(--transition-base);
}

.strength-fill.weak { width: 25%; background: var(--danger); }
.strength-fill.fair { width: 50%; background: var(--warning); }
.strength-fill.good { width: 75%; background: var(--accent-primary); }
.strength-fill.strong { width: 100%; background: var(--success); }

.strength-text {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.strength-text.weak { color: var(--danger); }
.strength-text.fair { color: var(--warning); }
.strength-text.good { color: var(--accent-primary); }
.strength-text.strong { color: var(--success); }

.password-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
}

/* Action Button */
.action-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

.action-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Output Panel */
.output-panel {
    display: flex;
    flex-direction: column;
}

.output-placeholder {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: var(--bg-input);
    border-radius: var(--radius-lg);
    text-align: center;
}

.output-placeholder svg {
    color: var(--text-muted);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.output-placeholder p {
    color: var(--text-muted);
}

.output-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.output-textarea {
    flex: 1;
    min-height: 200px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    word-break: break-all;
}

.output-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.output-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
}

.output-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* File Output */
.file-output-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-input);
    border-radius: var(--radius-lg);
    text-align: center;
}

.file-output-card svg {
    color: var(--success);
    margin-bottom: 1rem;
}

.file-output-info {
    margin-bottom: 1.5rem;
}

.file-output-name {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.file-output-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.download-file-btn {
    padding: 1rem 2rem;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all var(--transition-fast);
}

.download-file-btn:hover {
    background: var(--accent-secondary);
}

/* Security Info */
.security-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.security-badge svg {
    color: var(--success);
}

/* Features Section */
.features-section {
    padding: 5rem 0;
    text-align: center;
}

.features-section h2 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 400;
    margin-bottom: 3rem;
}

.features-section h2 em {
    font-style: italic;
    color: var(--accent-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    text-align: left;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

.feature-card h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Pricing Section */
.pricing-section {
    padding: 5rem 0;
    text-align: center;
    background: linear-gradient(180deg, transparent 0%, rgba(59, 130, 246, 0.03) 100%);
}

.pricing-section h2 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.pricing-section h2 em {
    font-style: italic;
    color: var(--accent-light);
}

.pricing-subtitle {
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.pricing-single {
    max-width: 400px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    text-align: center;
}

.pricing-card.featured {
    border-color: var(--accent-primary);
    box-shadow: 0 0 40px var(--accent-glow);
}

.pricing-header h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.price {
    font-size: 3rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.price-note {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    margin-bottom: 2rem;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 600;
}

/* Footer */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--accent-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1.5rem;
    }
    
    .app-card {
        padding: 1.5rem;
    }
    
    .security-info {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    /* Mobile Paywall Styles */
    .paywall-overlay {
        padding: 1rem;
    }

    .paywall-content {
        padding: 1.5rem;
    }

    .paywall-icon {
        width: 48px;
        height: 48px;
    }

    .paywall-icon svg {
        width: 24px;
        height: 24px;
    }

    .paywall-content h2 {
        font-size: 1.4rem;
    }

    .paywall-features {
        padding: 1rem;
    }

    .paywall-features li {
        font-size: 0.85rem;
    }

    .stripe-btn {
        padding: 0.9rem 1.25rem;
        font-size: 0.95rem;
    }

    .divider {
        margin: 0.75rem 0;
    }

    .already-purchased {
        padding-top: 1rem;
    }

    .unlock-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .paywall-content {
        padding: 1.25rem;
    }

    .paywall-content h2 {
        font-size: 1.25rem;
    }

    .paywall-features li {
        font-size: 0.85rem;
    }
}